High-performance drill bit with built-in heat conduction flow channel

Abstract

The high-performance drill bit with the built-in heat conduction flow channel comprises a drill bit body, a connecting shaft is fixedly installed at the top end of the drill bit body, a water flow cooling assembly is installed in the drill bit body and comprises a spiral cooling groove formed in the drill bit body, and a water inlet groove is formed in the connecting shaft. A water outlet groove is formed in the connecting shaft, one end of the water inlet groove and one end of the water outlet groove communicate with the two ends of the spiral cooling groove correspondingly, a water inlet pipe is fixedly installed at the top end of the connecting shaft, and one end of the water inlet pipe communicates with one end of the water inlet groove; in the working process, the spiral cooling groove is formed in the drill bit body, the drill bit body is cooled, water flow enters the annular pipe through the water outlet groove and the water outlet pipe and is sprayed downwards to the outer wall of the drill bit body from the spraying holes in the bottom wall of the annular pipe, and heat dissipation and cooling are further conducted on the drill bit body; and the cooling protection effect on the drill bit body is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of drill bits, in particular to a high-performance drill bit with a built-in heat conduction channel. Background Art

[0002] According to the patent document with the authorization announcement number of "CN113653448B" and the invention name of "A drill bit and drill bit production equipment", the specification states: a drill bit body and a drill bit angle adjustment mechanism, the drill bit angle adjustment mechanism is connected to the rear end of the drill bit body; the drill bit body includes a drill bit housing and a plurality of groups of drill teeth, the plurality of groups of drill teeth are embedded in the drill bit housing in a ring array, a group of drill teeth includes a plurality of Class A drill teeth, a plurality of Class B drill teeth and a plurality of Class C drill teeth, the plurality of Class A drill teeth and the plurality of Class B drill teeth and the plurality of Class C drill teeth are linearly arranged and parallel to each other; the Class A drill teeth are cutting composite sheets made of alloy material, the Class B drill teeth are diamond cone teeth, and the Class C drill teeth are diamond cone teeth; a wear replacement mechanism is provided in the drill bit housing and is connected to the plurality of Class C drill teeth, but the following defects still exist:

[0003] During the drilling process, the temperature of the drill bit is very high, and the drill bit is not equipped with heat conduction and heat dissipation assistance, which may easily cause the drill bit to be damaged by prolonged high temperature. Utility Model Content

[0004] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a high-performance drill bit with a built-in heat conduction channel, which effectively solves the problem that the drill bit is easily damaged due to high temperature during drilling and long-term high temperature.

[0005] To achieve the above object, the utility model provides the following technical solutions: a high-performance drill bit with a built-in heat conduction channel, comprising a drill bit body, a connecting shaft is fixedly installed on the top of the drill bit body, and a water flow cooling component is installed inside the drill bit body;

[0006] The water flow cooling component includes a spiral cooling groove opened inside the drill body, a water inlet groove is opened inside the connecting shaft, a water outlet groove is opened inside the connecting shaft, and one end of the water inlet groove and one end of the water outlet groove are respectively connected to the two ends of the spiral cooling groove.

[0007] Preferably, a water inlet pipe is fixedly mounted on the top end of the connecting shaft, and one end of the water inlet pipe is connected to one end of the water inlet trough.

[0008] Preferably, a water outlet pipe is fixedly mounted on one side of the connecting shaft, one end of the water outlet pipe is connected to one end of the water outlet trough, and an external heat sink is mounted on the other end of the water outlet pipe.

[0009] Preferably, the external heat sink includes an annular tube sleeved on the outside of the connecting shaft, the annular tube is connected to the water outlet pipe, and spray holes are evenly opened on the bottom wall of the annular tube. Water flowing through the spiral cooling groove enters the annular tube through the water outlet pipe and is evenly sprayed on the outer wall of the drill body from the spray holes to perform external heat dissipation.

[0010] Preferably, a baffle is installed inside the annular tube, and when the bottom wall of the baffle is in close contact with the inner bottom wall of the annular tube, the baffle closes the spray hole.

[0011] Preferably, a guide groove is provided at the top end of the annular tube, and a screw barrel is fixedly mounted at the top end of the annular tube.

[0012] Preferably, a guide rod is fixedly installed on the top of the baffle, and the guide rod is slidably connected to the guide groove. A screw is provided above the baffle, and the screw is threadedly connected to the screw barrel. A limit rotating block is coaxially fixedly installed on the bottom end of the screw, and the limit rotating block is rotatably installed inside the limit rotating groove, and the limit rotating groove is opened on the baffle.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] During operation, the drill body is cooled by opening a spiral cooling groove inside the drill body. Water flows into the annular tube through the water outlet groove and the water outlet pipe, and sprays downward from the spray holes on the bottom wall of the annular tube to the outer wall of the drill body, further dissipating heat and cooling the drill body, thereby improving the cooling protection effect of the drill body.

[0015] During operation, the baffle can move longitudinally inside the annular tube. When not in use, the baffle moves downward to close the spray hole to prevent dust from entering the grooves inside the drill body and ensure smooth water flow. When it needs to be used, the baffle moves upward to open the spray hole for easy use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0017] In the attached picture:

[0018] Figure 1 This is a schematic diagram of the structure of a high-performance drill bit with a built-in heat conduction channel of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the water cooling component of the utility model;

[0020] Figure 3 This is a schematic diagram of the annular tube structure of the utility model;

[0021] Figure 4 This is a schematic diagram of the baffle structure of the utility model.

[0022] In the figure: 1. drill bit body; 2. connecting shaft; 3. water flow cooling assembly; 301. spiral cooling groove; 302. water inlet groove; 303. water outlet groove; 304. water inlet pipe; 305. water outlet pipe; 306. annular pipe; 307. spray hole; 308. guide groove; 309. screw barrel; 310. baffle; 311. guide rod; 312. screw; 313. limit rotation groove; 314. limit rotation block. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0024] Embodiment 1, by Figure 1-4 The utility model relates to a high-performance drill bit with a built-in heat conduction channel, comprising a drill bit body 1, a connecting shaft 2 is fixedly installed on the top of the drill bit body 1, and a water flow cooling component 3 is installed inside the drill bit body 1;

[0025] The water flow cooling component 3 includes a spiral cooling groove 301 opened inside the drill bit body 1, a water inlet groove 302 is opened inside the connecting shaft 2, and a water outlet groove 303 is opened inside the connecting shaft 2. One end of the water inlet groove 302 and one end of the water outlet groove 303 are respectively connected to the two ends of the spiral cooling groove 301. A water inlet pipe 304 is fixedly installed on the top of the connecting shaft 2, and one end of the water inlet pipe 304 is connected to one end of the water inlet groove 302. A water outlet pipe 305 is fixedly installed on one side of the connecting shaft 2, and one end of the water outlet pipe 305 is connected to one end of the water outlet groove 303. An external heat sink is installed on the other end of the water outlet pipe 305.

[0026] The external heat dissipation member includes an annular tube 306 sleeved on the outside of the connecting shaft 2, the annular tube 306 is connected to the water outlet pipe 305, and spray holes 307 are evenly opened on the bottom wall of the annular tube 306. The water flowing through the spiral cooling groove 301 enters the annular tube 306 through the water outlet pipe 305, and is evenly sprayed on the outer wall of the drill body 1 from the spray holes 307 to perform external heat dissipation. A baffle 310 is installed inside the annular tube 306. When the bottom wall of the baffle 310 is tightly attached to the inner bottom wall of the annular tube 306, the baffle 310 closes the spray hole 307. A guide groove 308 is opened at the top of the annular tube 306, a screw barrel 309 is fixedly installed at the top of the annular tube 306, and a guide rod 311 is fixedly installed at the top of the baffle 310. The guide rod 311 is slidably connected to the guide groove 308. A screw rod 312 is provided above the baffle 310, and the screw 312 is threadedly connected to the screw barrel 309. Then, a limit swivel block 314 is coaxially fixedly installed at the bottom end of the screw rod 312, and the limit swivel block 314 is rotatably installed inside the limit swivel groove 313. The limit swivel groove 313 is opened on the baffle plate 310. A spiral cooling groove 301 is opened inside the drill body 1 to cool the drill body 1. Water flows into the annular tube 306 through the water outlet groove 303 and the water outlet pipe 305, and sprays downward from the spray hole 307 on the bottom wall of the annular tube 306 to the outer wall of the drill body 1, further dissipating heat and cooling the drill body 1, thereby improving the cooling protection effect of the drill body 1. The baffle plate 310 can move longitudinally inside the annular tube 306. When not in use, the baffle plate 310 moves downward to close the spray hole 307 to prevent dust from entering the various grooves inside the drill body 1 and ensure smooth water flow. When it is needed, the baffle plate 310 moves upward to open the spray hole 307 for easy use.

[0027] Working principle: When working, first, a spiral cooling groove 301 is opened inside the drill body 1. When water flows from the water inlet groove 302 through the spiral cooling groove 301, the drill body 1 is cooled. Then, the water flows through the water outlet groove 303 and the water outlet pipe 305 into the annular tube 306, and sprays downward from the spray hole 307 on the bottom wall of the annular tube 306 to the outer wall of the drill body 1, further dissipating heat and cooling the drill body 1.

[0028] When the drill body 1 is not in use, the bottom wall of the baffle 310 is in close contact with the inner bottom wall of the annular tube 306, so that the baffle 310 closes the spray hole 307, reducing the entry of external dust into the various grooves inside the drill body 1 and avoiding water blockage. When in use, by turning the screw 312, the screw 312 is threadedly connected to the screw barrel 309, thereby pulling the baffle 310 upward to open the spray hole 307 for convenient water spraying.

Claims

1. A high-performance drill bit with a built-in heat conduction channel, comprising a drill bit body (1), characterized in that: A connecting shaft (2) is fixedly mounted on the top of the drill body (1), and a water flow cooling component (3) is mounted inside the drill body (1); The water flow cooling component (3) comprises a spiral cooling groove (301) provided inside the drill bit body (1), a water inlet groove (302) provided inside the connecting shaft (2), a water outlet groove (303) provided inside the connecting shaft (2), and one end of the water inlet groove (302) and one end of the water outlet groove (303) are respectively connected to two ends of the spiral cooling groove (301).

2. A high-performance drill bit with a built-in heat conduction channel according to claim 1, characterized in that: A water inlet pipe (304) is fixedly mounted on the top end of the connecting shaft (2), and one end of the water inlet pipe (304) is connected to one end of the water inlet trough (302).

3. A high-performance drill bit with a built-in heat conduction channel according to claim 1, characterized in that: A water outlet pipe (305) is fixedly mounted on one side of the connecting shaft (2); one end of the water outlet pipe (305) is connected to one end of the water outlet trough (303); and the other end of the water outlet pipe (305) is mounted with an external heat sink.

4. A high-performance drill bit with a built-in heat conduction channel according to claim 3, characterized in that: The external heat sink comprises an annular tube (306) sleeved on the outside of the connecting shaft (2); the annular tube (306) is connected to the water outlet pipe (305); spray holes (307) are evenly arranged on the bottom wall of the annular tube (306); water flowing through the spiral cooling groove (301) enters the annular tube (306) through the water outlet pipe (305) and is evenly sprayed on the outer wall of the drill body (1) from the spray holes (307) to perform external heat dissipation.

5. A high-performance drill bit with a built-in heat conduction channel according to claim 4, characterized in that: A baffle (310) is installed inside the annular tube (306); when the bottom wall of the baffle (310) is in close contact with the inner bottom wall of the annular tube (306), the baffle (310) closes the spray hole (307).

6. The high-performance drill bit with built-in heat conduction channel according to claim 4, characterized in that: A guide groove (308) is provided at the top end of the annular tube (306), and a screw barrel (309) is fixedly mounted at the top end of the annular tube (306).

7. The high-performance drill bit with built-in heat conduction channel according to claim 5, characterized in that: A guide rod (311) is fixedly mounted on the top of the baffle (310), and the guide rod (311) is slidably connected to the guide groove (308). A screw rod (312) is provided above the baffle (310), and the screw rod (312) is threadedly connected to the screw barrel (309). A limit rotation block (314) is coaxially fixedly mounted on the bottom end of the screw rod (312), and the limit rotation block (314) is rotatably mounted inside the limit rotation groove (313). The limit rotation groove (313) is opened on the baffle (310).

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